The FM25V20-GL is a 2 Mbit Serial (SPI) F-RAM (Ferroelectric Random Access Memory) device from Ramtron. It's a non-volatile memory solution offering fast read/write speeds, high endurance, and low power consumption, making it a suitable alternative to EEPROM and other non-volatile memory technologies.

Applications

• Data Logging
• Industrial Control Systems
• Medical Devices
• Smart Meters
• Gaming Machines
• Automotive Electronics

Features

• 2-Megabit Ferroelectric Random Access Memory (F-RAM)
• Organized as 256K x 8
• High-Endurance 100 Trillion (10¹⁴) Read/Write Cycles
• Data Retention: 151 years (See Data Retention Table)
• NoDelay™ Writes
• Advanced High-Reliability Ferroelectric Technology
• Serial Peripheral Interface (SPI)
• Supports SPI Modes 0 (0,0) and 3 (1,1)
• Up to 40 MHz Bus Frequency
• Write Protection
• Software Write Protection
• Low Power Consumption
• 3.3V Operating Voltage
• Industrial Temperature -40°C to +85°C
• RoHS Compliant

Benefits

• High Endurance: Virtually unlimited read/write cycles eliminate concerns about memory wear-out in write-intensive applications.
• Fast Write Speeds: NoDelay writes mean data is written instantly, eliminating write delays associated with EEPROM and flash memory.
• Low Power: Reduced power consumption extends battery life in portable devices and minimizes overall system power requirements.
• Data Retention: Long data retention ensures that critical data is preserved even without power.
• SPI Interface: Standard SPI interface simplifies integration with microcontrollers and other system components.

Additional Details

The FM25V20-GL operates at a voltage of 3.3V and is available in various package options. It is designed for reliable operation over an industrial temperature range of -40°C to +85°C. The device utilizes an SPI interface for communication, supporting modes 0 and 3. Software write protection features are included to prevent accidental data corruption. The F-RAM technology ensures superior data retention compared to traditional non-volatile memory options. Ramtron's F-RAM technology provides a superior combination of speed, endurance, and power efficiency.